How to Observe the Vacuum Decay in Low-Energy Heavy-Ion Collisions.

@article{Maltsev2019HowTO,
  title={How to Observe the Vacuum Decay in Low-Energy Heavy-Ion Collisions.},
  author={Ilia A. Maltsev and V. M. Shabaev and R. V. Popov and Yu. S. Kozhedub and G{\"u}nter Plunien and X. Ma and Th St{\"o}hlker and D. A. Tumakov},
  journal={Physical review letters},
  year={2019},
  volume={123 11},
  pages={
          113401
        }
}
In slow collisions of two bare nuclei with the total charge larger than the critical value Z_{cr}≈173, the initially neutral vacuum can spontaneously decay into the charged vacuum and two positrons. The detection of the spontaneous emission of positrons would be direct evidence of this fundamental phenomenon. However, the spontaneously produced particles are indistinguishable from the dynamical background in the positron spectra. We show that the vacuum decay can nevertheless be observed via… Expand
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